155273513 has 8 divisors (see below), whose sum is σ = 160563456. Its totient is φ = 150001200.

The previous prime is 155273509. The next prime is 155273537. The reversal of 155273513 is 315372551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 155273513 - 2² = 155273509 is a prime.

It is a super-2 number, since 2×155273513² = 48219727678722338, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 155273513.

It is not an unprimeable number, because it can be changed into a prime (155273543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14918 + ... + 23088.

It is an arithmetic number, because the mean of its divisors is an integer number (20070432).

Almost surely, 2^155273513 is an apocalyptic number.

It is an amenable number.

155273513 is a deficient number, since it is larger than the sum of its proper divisors (5289943).

155273513 is an equidigital number, since it uses as much as digits as its factorization.

155273513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8815.

The product of its digits is 15750, while the sum is 32.

The square root of 155273513 is about 12460.8793028422. The cubic root of 155273513 is about 537.4843123599.

The spelling of 155273513 in words is "one hundred fifty-five million, two hundred seventy-three thousand, five hundred thirteen".